editor notification panel should not restrict splitter resize (IDEA-78815)

platform/platform-api/src/com/intellij/ui/EditorNotificationPanel.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2009 JetBrains s.r.o.
+ * Copyright 2000-2012 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -92,4 +92,9 @@ public class EditorNotificationPanel extends JPanel {
       action.actionPerformed(event);
     }
   }
+
+  @Override
+  public Dimension getMinimumSize() {
+    return new Dimension(0, 0);
+  }
 }